Tracheal retractor for endoscopic thyroid cancer operation
By designing laparoscopic thyroid cancer surgery tracheal pulling hooks, the complex problems of tracheal pulling and smoke suction operations in the prior art are solved, and the effect of simplifying the surgical process, improving efficiency and reducing damage is achieved.
Patent Information
- Application Number
- CN202510530680.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-07-04
AI Technical Summary
In existing laminoscopic thyroid cancer surgery, the operation of pulling the trachea and smoking smoke is more complicated, which is easy to cause damage and is inconvenient.
A laminoscopic thyroid cancer surgery tracheal hook is designed, with a hook rod, a handle and a hook head, a built-in airflow channel, and a vent hole is installed on the handle and hook head. The negative pressure is used to control the smoke to smoke by pressing the vent hole, and the hook head hooks the trachea to reveal the affected area.
It simplifies the surgical process, improves the operation efficiency, ensures the stability and safety of the tracheal hook, reduces damage to the tracheal and surrounding tissues, and provides clear surgical field support.
Smart Images
Figure CN120241150A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical surgical instruments, and particularly to a tracheal retractor for laparoscopic thyroid cancer surgery. Background Art
[0002] Thyroid cancer is one of the common malignant tumors, and surgery is the main treatment method. With the development of laparoscopic technology, laparoscopic thyroid cancer surgery has gradually become the mainstream surgical method due to its advantages such as small trauma, rapid recovery, and good aesthetics. However, in the laparoscopic environment, due to the narrow surgical space, it is difficult to expose the surgical field, which has become a difficult point in the surgery. One of the existing methods to make the surgical field clear is to retract the trachea: use an instrument to retract the trachea away from the affected area, and aspirate the smoke generated by the scalpel during the operation to make the surgical field clear, so that the surgeon can easily observe the affected area. In thyroid surgery, the trachea is located behind the thyroid gland and is an important anatomical structure. Retracting the trachea is crucial for surgical procedures such as fully exposing the thyroid gland and surrounding tissues and cleaning lymph nodes. In existing laparoscopic surgical instruments, it is often necessary to use other instruments such as surgical forceps to retract the trachea, and then additionally use an aspiration device to aspirate the smoke generated by the scalpel. The instruments required are numerous, and it is easy to cause damage when retracting the trachea, affecting the safety and effect of the surgery, and the operation is relatively complex. Therefore, a tracheal retractor that is convenient to operate is needed, so that the surgeon can conveniently aspirate the smoke generated during the operation while retracting the trachea. Summary of the Invention
[0003] One of the purposes of the present invention is to provide a tracheal retractor for laparoscopic thyroid cancer surgery to solve the problem that the operation of retracting the trachea and aspirating smoke during surgery in the prior art is relatively complex.
[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:
[0005] A tracheal retractor for laparoscopic thyroid cancer surgery, used for retracting the trachea during the operation, includes: a retractor rod, a handle, and a retractor head. An air flow channel is formed inside the retractor rod; the handle is formed on the retractor rod for the surgeon to hold; the retractor head is formed at one end of the retractor rod for contacting and retracting the trachea; a suction connection port is formed at the other end of the retractor rod, and the suction connection port is used to connect a suction device so that an air flow can be generated in the air flow channel; a first ventilation hole is formed on the handle, and a second ventilation hole is formed on the retractor head. Both the first ventilation hole and the second ventilation hole are communicated with the air flow channel, and are configured such that by the surgeon pressing or releasing the first ventilation hole, negative pressure can be generated or the negative pressure can be released at the second ventilation hole.
[0006] According to the above technical means, the trachea can be hooked by the hook head to expose the affected area, so that the surgeon can clearly observe the affected area; the first ventilation hole and the second ventilation hole are connected to the air flow channel. When the air flow in the air flow channel is generated by using the suction device, the surgeon can conveniently and quickly generate negative pressure or relieve negative pressure at the second ventilation hole by pressing or releasing the first ventilation hole with the thumb, making it convenient and quick for the surgeon to aspirate the smoke, simplifying the surgical process, shortening the operation time, improving the surgical efficiency, and the handle can facilitate the surgeon to firmly hold the tracheal retractor to ensure the stability of the tracheal retractor during the operation.
[0007] At the same time, the tracheal retractor of the present invention has a simple structure and convenient operation, and can safely, reliably and flexibly retract the trachea on the premise of minimally invasive surgery, providing surgical field support for endoscopic thyroid surgery.
[0008] Furthermore, the handle includes two sub-handle parts symmetrically arranged along the retractor rod, and each sub-handle part is formed with a first concave arc surface, a second concave arc surface and a third concave arc surface that are convenient for the surgeon to hold. When the surgeon holds it, the hand abuts against one or more of the two groups of the first concave arc surface, the second concave arc surface and the third concave arc surface.
[0009] According to the above technical means, the first concave arc surface, the second concave arc surface and the third concave arc surface on each sub-handle part can make the handle fit the palm curve when the surgeon holds it, forming a three-dimensional support, increasing the contact area when the surgeon holds the handle, not only can prevent the tracheal retractor from slipping, but also can disperse the holding pressure and reduce the fatigue of the surgeon's hand during the operation; two sub-handle parts are arranged in a counter-supporting manner along the retractor rod, enabling the surgeon to operate the tracheal retractor flexibly with either the left hand or the right hand, improving the flexibility of using the tracheal retractor.
[0010] Furthermore, the central angles θ1 of the arcs corresponding to the first concave arc surface, the second concave arc surface and the third concave arc surface are 180° to 220°.
[0011] According to the above technical means, the first concave arc surface, the second concave arc surface and the third concave arc surface can highly fit the curvature of the surgeon's fingers, enabling the hand of the surgeon to fit the handle in a large area when holding the tracheal retractor, evenly dispersing the pressure when the fingers contact the handle, and facilitating the surgeon to hold for a long time.
[0012] Furthermore, anti-slip patterns are formed on each sub-handle part so that the surgeon can firmly hold the handle.
[0013] According to the above technical means, the anti-slip patterns increase the contact resistance between the handle and the surgeon's hand through the concave-convex structure, enabling the surgeon to firmly hold the handle even when the hand is wet, which can not only reduce the risk of the tracheal retractor slipping, but also reduce the number of times the tracheal retractor needs to be adjusted due to the slip of the instrument during the operation.
[0014] Furthermore, the hook head is an arc-shaped tubular structure with a diameter D = 0.5 mm to 1.2 mm, and the central angle θ2 of the corresponding arc of the hook head is 190° to 210°.
[0015] According to the above technical means, the hook head with a small diameter can extend into the narrow gap between the trachea and human tissues, facilitating the surgeon to accurately find and pull the trachea through the tracheal hook; the central angle θ2 of the corresponding arc of the hook head is 190° to 210°, making the arc where the hook head is located a major arc, enabling the trachea to be stably located within the curved arc formed by the hook head when being pulled.
[0016] Furthermore, the second ventilation hole includes a first suction hole and a second suction hole. The distance L1 from the center of the first suction hole to the end of the hook head far from the hook rod is 0.3 cm to 0.7 cm; the distance L2 from the center of the second suction hole to the end of the hook head far from the hook rod is 0.8 cm to 1.2 cm.
[0017] According to the above technical means, the double-hole design of the first suction hole and the second suction hole can perform multi-point suction, improving the speed and efficiency of smoking the intraoperative fog; in addition, when the first suction hole or the second suction hole comes into contact with human tissues and cannot perform suction, the second suction hole or the first suction hole can continue to play the role of suction to smoke the fog, and can also avoid tissue damage caused by excessive negative pressure.
[0018] Furthermore, an anti-slip portion is formed on the outer side of the suction connection port. The anti-slip portion is used to increase the friction between the suction connection port and the suction device to prevent the separation of the suction device from the suction connection port.
[0019] According to the above technical means, the anti-slip portion can increase the connection stability between the suction connection port and the suction device, prevent the interruption of suction caused by the detachment of the suction device during the operation, ensure the continuous progress of the operation, and further ensure the continuous clarity of the intraoperative surgical field.
[0020] Furthermore, the anti-slip portion includes a plurality of annular anti-slip protrusions, and each of the annular anti-slip protrusions is formed on the outer side of the suction connection port and is arranged at uniform intervals.
[0021] According to the above technical means, the plurality of annular anti-slip protrusions can circumferentially enhance the connection stability between the suction device and the suction connection port, preventing the detachment between the suction device and the suction connection port.
[0022] Furthermore, a round blunt head is formed at the end of the hook head far from the hook rod to prevent scratching human tissues.
[0023] According to the above technical means, a blunt head is formed at the end of the retractor head, eliminating the sharp edges. When the blunt head contacts human tissues, local stress concentration is reduced, the risk of tissue damage can be lowered, and the safety of the operator's operation can be improved.
[0024] Further, the retractor rod, the handle, and the retractor head are made of stainless steel or ceramic and are integrally formed.
[0025] According to the above technical means, stainless steel has excellent mechanical strength and corrosion resistance, and does not stimulate human tissues, preventing the risk of allergic or rejection reactions during the operation; ceramics have stable chemical properties, and bacteria are not easily attached to the surface, which can effectively reduce the risk of postoperative infection; the integrally formed retractor rod, handle, and retractor head make the tracheal retractor have no seams, so there are no disinfection dead ends, which is convenient for cleaning and disinfection, avoids the tracheal retractor from hiding dirt and meets the high-cleanliness requirements of the surgical scenario, and can reduce the risk of cross-infection.
[0026] The beneficial effects of the present invention are as follows:
[0027] 1. The tracheal retractor of the present invention can hook the trachea through the retractor head to expose the affected area, so that the operator can clearly observe the affected area; the first ventilation hole and the second ventilation hole communicate with the air flow channel. When an air flow is generated in the air flow channel by using a suction device, the operator can conveniently and quickly generate or relieve negative pressure at the second ventilation hole by pressing or releasing the first ventilation hole with the thumb, making it convenient and quick for the operator to aspirate the smoke, simplifying the surgical process, shortening the operation time, improving the surgical efficiency, and the handle can facilitate the operator to firmly hold the tracheal retractor and ensure the stability of the tracheal retractor during the operation.
[0028] 2. The tracheal retractor of the present invention has a simple structure and convenient operation, and can safely, reliably and flexibly retract the trachea on the premise of minimally invasive surgery, providing field of view support for endoscopic thyroid surgery. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0030] Figure 1 is the overall structural schematic diagram of the tracheal retractor of the present invention;
[0031] Figure 2 is Figure 1 the enlarged schematic diagram of the structure at A in
[0032] Figure 3is a schematic structural view of the present invention facing the handle;
[0033] Figure 4 is Figure 3 an enlarged schematic view of the structure at position B in;
[0034] Figure 5 is a schematic structural view of the present invention facing the second suction hole;
[0035] Figure 6 is Figure 5 an enlarged schematic view of the structure at position C in.
[0036] Wherein:
[0037] 100, hook rod; 110, air flow channel; 120, suction connection port; 121, anti-slip part; 1211, annular anti-slip protrusion; 200, handle; 210, first ventilation hole; 220, sub-handle part; 221, first concave arc surface; 222, second concave arc surface; 223, third concave arc surface; 224, anti-slip pattern; 300, hook head; 311, first suction hole; 312, second suction hole; 320, round blunt head. Detailed Embodiment
[0038] The following will illustrate the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. The accompanying drawings are only for illustrative purposes and cannot be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the protection scope of the present invention.
[0039] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.
[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.
[0041] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0042] Embodiment 1
[0043] This embodiment provides a tracheal retractor for endoscopic thyroidectomy as shown in Figure 1 and Figure 5 which is used to retract the trachea during the operation and includes a retractor rod 100, a handle 200, and a retractor head 300. An air flow channel 110 is formed inside the retractor rod 100; the handle 200 is formed on the retractor rod 100 for the operator to hold; the retractor head 300 is formed at one end of the retractor rod 100 for contacting and retracting the trachea; a suction connection port 120 is formed at the other end of the retractor rod 100, and the suction connection port 120 is used to connect a suction device so that an air flow can be generated inside the air flow channel 110; a first ventilation hole 210 is formed on the handle 200, and a second ventilation hole is formed on the retractor head 300. Both the first ventilation hole 210 and the second ventilation hole are in communication with the air flow channel 110 and are configured such that by the operator pressing or releasing the first ventilation hole 210, negative pressure can be generated or the negative pressure can be released at the second ventilation hole.
[0044] During the operation, after establishing the endoscopic surgical environment, the operator first connects the tracheal retractor to the suction device, and then uses two or more fingers of one hand in cooperation with the palm to hold the handle 200 and operate to gently place the retractor head 300 on the surface of the trachea, and uses the retractor head 300 to safely retract the trachea to fully expose the thyroid gland and surrounding tissues; during the operation, the suction device is activated according to actual needs to generate an air flow inside the air flow channel 110; when it is necessary to quickly suck the smoke generated during the operation (note, the smoke here refers to the gaseous substances generated when energy instruments such as laser knives and ultrasonic knives cut, burn, or vaporize tissues), the operator can generate negative pressure at the second ventilation hole to suck the smoke by pressing the first ventilation hole 210 with the thumb. When it is not necessary to quickly suck the smoke, the operator releases the thumb pressing the first ventilation hole 210, so that no large negative pressure will be generated at the second ventilation hole, and the retractor head 300 will not suck human tissues and cause damage when moving. It is worth mentioning that the operator can flexibly adjust the retracting position and force of the retractor head 300 according to the actual needs of the operation to ensure a clear surgical field of view and at the same time reduce the damage to the trachea and surrounding tissues. After the operation, the operator only needs to slowly release the retraction and operate the retractor head 300 to withdraw from the surgical area.
[0045] The tracheal retractor of the present invention can hook the trachea through the retractor head 300 to expose the affected area, so that the surgeon can clearly observe the affected area; the first ventilation hole 210 and the second ventilation hole are connected to the air flow channel 110. When generating an air flow in the air flow channel 110 by using a suction device, the surgeon can conveniently and quickly generate negative pressure or relieve negative pressure at the second ventilation hole by pressing or releasing the first ventilation hole 210 with the thumb, enabling the surgeon to conveniently and quickly aspirate the smoke, simplifying the surgical process, shortening the operation time, and improving the surgical efficiency. The handle 200 can facilitate the surgeon to firmly hold the tracheal retractor and ensure the stability of the tracheal retractor during the operation.
[0046] At the same time, the tracheal retractor of the present invention has a simple structure and convenient operation, and can safely, reliably and flexibly retract the trachea on the premise of minimally invasive surgery, providing field of view support for endoscopic thyroid surgery, and having important clinical application value and broad market prospects.
[0047] For the convenience of the surgeon's operation, only one first ventilation hole 210 is formed on one side of the handle 200 where the retractor head 300 bends and points, and the first ventilation hole 210 is located at the geometric center of the handle 200.
[0048] As Figure 3 shown, in this embodiment, the handle 200 includes two sub-handle parts 220 symmetrically arranged along the retractor rod 100. Each sub-handle part 220 is formed with a first concave arc surface 221, a second concave arc surface 222 and a third concave arc surface 223 for the surgeon to hold conveniently. When the surgeon holds it, the hand abuts against one or more of the two groups of first concave arc surfaces 221, second concave arc surfaces 222 and third concave arc surfaces 223. During the operation, the surgeon can place two or more fingers in two or more of the two groups of first concave arc surfaces 221, second concave arc surfaces 222 and third concave arc surfaces 223 respectively. The first concave arc surface 221, second concave arc surface 222 and third concave arc surface 223 on each sub-handle part 220 can make the handle 200 fit the palm curve when the surgeon holds it, forming a three-dimensional support, increasing the contact area when the surgeon holds the handle 200, not only preventing the tracheal retractor from slipping, but also dispersing the holding pressure and reducing the fatigue of the surgeon's hand during the operation; two sub-handle parts 220 are arranged in a buttressing manner along the retractor rod 100, enabling the surgeon to operate the tracheal retractor flexibly with either the left hand or the right hand, and improving the flexibility of using the tracheal retractor.
[0049] As Figure 4 shown, in this embodiment, the central angles θ1 of the arcs corresponding to the first concave arc surface 221, the second concave arc surface 222 and the third concave arc surface 223 are 180° - 220°. The first concave arc surface 221, the second concave arc surface 222 and the third concave arc surface 223 can highly fit the curvature of the surgeon's fingers, enabling the hand to fit the handle 200 in a large area when the surgeon holds the tracheal retractor, and evenly dispersing the pressure when the fingers contact the handle 200, facilitating the surgeon to hold it for a long time.
[0050] In this embodiment, preferably, the central angles θ1 of the arcs corresponding to the first concave arc surface 221, the second concave arc surface 222, and the third concave arc surface 223 are 200°, which can fit the curvature of the surgeon's finger to the greatest extent and facilitate the surgeon to hold for a long time.
[0051] As Figure 1 shown, in this embodiment, anti-slip patterns 224 are formed on each sub-handle portion 220 so that the surgeon can firmly hold the handle 200. The anti-slip patterns 224 increase the contact resistance between the handle 200 and the surgeon's hand through the concave-convex structure, enabling the surgeon to still firmly hold the handle 200 when the hand is wet. This can not only reduce the risk of the tracheal retractor slipping off but also reduce the number of times the tracheal retractor needs to be adjusted due to instrument slippage during the operation. The two symmetrically arranged sub-handle portions 220 together form a butterfly-shaped handle 200, and anti-slip patterns 224 are formed on the entire outer surface of the butterfly-shaped handle 200. Of course, the anti-slip patterns 224 can also be replaced by anti-slip protrusions as long as they can increase the stability when the surgeon holds the handle 200.
[0052] As Figure 2 shown, in this embodiment, the retractor head 300 is an arc-shaped tubular structure. The internal cavity of the retractor head 300 is connected to the air flow channel 110. The diameter D of the retractor head 300 is 0.5 mm to 1.2 mm (the diameter here refers to the outer diameter of the retractor head 300), and the central angle θ2 of the arc corresponding to the retractor head 300 is 190° to 210°. The retractor head 300 with a small diameter can extend into the narrow gap between the trachea and human tissues, facilitating the surgeon to accurately find and pull the trachea through the tracheal retractor. When the central angle θ2 of the arc corresponding to the retractor head 300 is 190° to 210°, the arc where the retractor head 300 is located forms a major arc, which can highly fit the curvature of the tracheal outer wall, enabling the trachea to be stably located within the arc formed by the retractor head 300 when being pulled, and the pressure can be evenly distributed when pulling the trachea, effectively reducing the risk of damage to the tracheal wall by the retractor head 300.
[0053] In this embodiment, in order to make the retractor head 300 fit the curvature of most tracheal outer walls to the greatest extent, preferably, the central angle θ2 of the arc corresponding to it is 199°.
[0054] As Figure 3 and Figure 5As shown, in this embodiment, the second ventilation hole includes a first suction hole 311 and a second suction hole 312. The distance L1 from the center of the first suction hole 311 to the end of the hook head 300 away from the hook rod 100 is 0.3 cm to 0.7 cm; the distance L2 from the center of the second suction hole 312 to the end of the hook head 300 away from the hook rod 100 is 0.8 cm to 1.2 cm. The double-hole design of the first suction hole 311 and the second suction hole 312 enables multi-point suction, improving the speed and efficiency of sucking intraoperative smoke. In addition, when the first suction hole 311 or the second suction hole 312 comes into contact with human tissue and cannot perform suction, the second suction hole 312 or the first suction hole 311 can continue to play a suction role to suck the smoke, and can also prevent tissue damage caused by excessive negative pressure. In order to enable the first suction hole 311 and the second suction hole 312 to suck the smoke more comprehensively, the first suction hole 311 and the second suction hole 312 are staggeredly distributed (that is, neither the first suction hole 311 nor the second suction hole 312 is on the same cross-section or the same longitudinal section of the hook head 300). Since the tissues in the human body are unevenly distributed, the staggered distribution of the first suction hole 311 and the second suction hole 312 can suck the smoke over a large area and can also prevent both of them from being blocked by human tissue at the same time, so as to ensure the normal use of the tracheal hook suction function.
[0055] In this embodiment, in order to enable the first suction hole 311 and the second suction hole 312 to suck the smoke generated during the operation over a large area and continuously, it is preferably that the distance L1 from the first suction hole 311 to the end of the hook head 300 away from the hook rod 100 is 0.5 cm, and the distance L2 from the second suction hole 312 to the end of the hook head 300 away from the hook rod 100 is 1.0 cm.
[0056] As Figure 5 shown, in this embodiment, an anti-slip portion 121 is formed on the outer side of the suction connection port 120. The anti-slip portion 121 is used to increase the friction between the suction connection port 120 and the suction device to prevent the suction device from separating from the suction connection port 120. The anti-slip portion 121 can increase the connection stability between the suction connection port 120 and the suction device, prevent the suction device from falling off during the operation, resulting in suction interruption, ensure that the operation can continue, and further ensure that the surgical field of view remains clear during the operation.
[0057] As Figure 5 shown, in this embodiment, the anti-slip portion 121 includes a plurality of annular anti-slip protrusions 1211. Each annular anti-slip protrusion 1211 is formed on the outer side of the suction connection port 120 and is arranged at a uniform interval. The plurality of annular anti-slip protrusions 1211 can circumferentially enhance the connection stability between the suction device and the suction connection port 120, preventing the suction device from separating from the suction connection port 120.
[0058] To facilitate the connection of the suction connection port 120 on the tracheal retractor, a soft suction tube is configured on the suction device. The soft suction tube is connected to the suction connection port 120 to generate an air flow in the air flow channel 110 of the tracheal retractor. The outer diameter of the suction connection port 120 is slightly larger than the inner diameter of the soft suction tube, and the soft suction tube has a certain deformation ability. Therefore, it can be sleeved outside the suction connection port 120 and can also provide a tightening force for the position where the soft suction tube is sleeved on the suction connection port 120, so that the soft suction tube can be firmly sleeved outside the suction connection port 120. As shown in the appendix Figure 1 It can be seen that the longitudinal section of the annular anti-slip protrusion 1211 is trapezoidal. A plurality of annular anti-slip protrusions 1211 combined together can form a serrated cross-section, which can increase the anti-slip performance between the soft suction tube and the suction connection port 120, so that the soft suction tube and the suction connection port 120 can be firmly connected.
[0059] As Figure 2 shown, in this embodiment, a blunt head 320 is formed at one end of the retractor head 300 away from the retractor rod 100 to prevent scratching of human tissues. Forming a blunt head 320 at the end of the retractor head 300 eliminates the sharp edge, so that when the blunt head 320 contacts human tissues, local stress concentration is reduced, and direct compression or stabbing of important structures on the side of the trachea, such as the recurrent laryngeal nerve, can be avoided when pulling the trachea. It can reduce the occurrence of secondary injuries and the risk of tissue damage while fully exposing the thyroid gland and surrounding tissues, improving the safety of the operator's operation.
[0060] In this embodiment, the materials of the retractor rod 100, the handle 200, and the retractor head 300 are stainless steel or ceramic and are integrally formed. Stainless steel (such as 316L stainless steel) has excellent mechanical strength and corrosion resistance, and has no irritation to human tissues, preventing the risk of allergic or rejection reactions during the operation; the chemical properties of ceramics are stable, and bacteria are not easily attached to the surface, which can effectively reduce the risk of postoperative infection; the integral formation of the retractor rod 100, the handle 200, and the retractor head 300 makes the tracheal retractor have no seams and no disinfection dead ends, which is convenient for cleaning and disinfection, avoiding the tracheal retractor from hiding dirt and meeting the high-cleanliness requirements of the surgical scene, and can reduce the risk of cross-infection. Moreover, the integral formation can make the connection between the retractor rod 100, the retractor head 300, and the handle 200 firm. Stainless steel and ceramics also have good biocompatibility and can meet the strict requirements of medical surgical instruments.
[0061] Embodiment 2
[0062] This embodiment is another implementation manner of the central angle θ1 of the corresponding arcs of the first concave arc surface 221, the second concave arc surface 222, and the third concave arc surface 223 in Embodiment 1, and the difference is that:
[0063] In this embodiment, the central angles θ1 of the arcs corresponding to the first concave arc surface 221, the second concave arc surface 222, and the third concave arc surface 223 are 180° or 220°. This angle can also make the first concave arc surface 221, the second concave arc surface 222, and the third concave arc surface 223 highly conform to the curvature of the surgeon's finger. It should be noted that in this embodiment, other structures, the installation methods of the structures, and the principles are the same as those in Embodiment 1.
[0064] Embodiment 3
[0065] This embodiment is another implementation manner of the central angle θ2 of the arc corresponding to the hook head 300 in Embodiment 1, and the difference lies in:
[0066] In this embodiment, the central angle θ2 of the arc corresponding to the hook head 300 is 190° or 210°. This angle can also make the hook head 300 highly conform to the curvature of the outer wall of the trachea, ensuring that the trachea is stably located within the curved arc formed by the hook head 300 when being pulled. It should be noted that in this embodiment, other structures, the installation methods of the structures, and the principles are the same as those in Embodiment 1.
[0067] Embodiment 4
[0068] In this embodiment, in order to achieve the anti-slip effect, dense anti-slip protrusions can also be formed on each sub-handle portion 220 to ensure that the surgeon can stably hold the handle 200. It should be noted that in this embodiment, other structures, the installation methods of the structures, and the principles are the same as those in Embodiment 1.
[0069] Embodiment 5
[0070] This embodiment is another implementation manner of the anti-slip portion 121 at the suction connection port 120 in Embodiment 1, and the difference lies in:
[0071] Threads or grooves can also be formed on the outer side of the suction connection port 120, as long as the suction connection port 120 can be firmly connected to the soft suction pipe on the suction device to ensure that air flow can be continuously generated in the air flow channel 110 and the suction function at the hook head 300 can be used normally. It should be noted that in this embodiment, other structures, the installation methods of the structures, and the principles are the same as those in Embodiment 1.
[0072] Of course, the above embodiments are only simple descriptions of the implementation of the tracheal retractor in the present invention. In the specific implementation process, the features in Embodiments 1 to 5 can be combined to meet the actual needs.
[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A tracheal retractor for endoscopic thyroidectomy, which is used to retract the trachea during the operation, and is characterized in that, Including: A retractor rod (100), a handle (200) and a retractor head (300). An air flow channel (110) is formed inside the retractor rod (100); the handle (200) is formed on the retractor rod (100) for the operator to hold; the retractor head (300) is formed at one end of the retractor rod (100) for contacting and pulling the trachea; a suction connection port (120) is formed at the other end of the retractor rod (100), and the suction connection port (120) is used to connect a suction device so that an air flow can be generated in the air flow channel. A first ventilation hole (210) is formed on the handle (200), and a second ventilation hole is formed on the retractor head (300). The first ventilation hole (210) and the second ventilation hole are both communicated with the air flow channel (110), and are configured such that by the operator pressing or releasing the first ventilation hole (210), negative pressure can be generated or the negative pressure can be released at the second ventilation hole.
2. The trachea retractor for endoscopic thyroidectomy according to claim 1, characterized in that, The handle (200) includes two sub-handle parts (220) symmetrically arranged along the retractor rod (100). On each sub-handle part (220), a first concave arc surface (221), a second concave arc surface (222) and a third concave arc surface (223) for facilitating the operator to hold are formed. When the operator holds, the hand abuts against one or more of the two groups of the first concave arc surfaces (221), the second concave arc surfaces (222) and the third concave arc surfaces (223).
3. A tracheal retractor for endoscopic thyroid cancer surgery according to claim 2, characterized in that, The central angles θ1 of the corresponding arcs of the first concave arc surface (221), the second concave arc surface (222) and the third concave arc surface (223) are 180° - 220°.
4. A tracheal retractor for endoscopic thyroidectomy according to claim 2, characterized in that, Anti-slip patterns (224) are further formed on each sub-handle part (220) so that the operator can firmly hold the handle (200).
5. A tracheal retractor for endoscopic thyroidectomy according to claim 1, characterized in that, The retractor head (300) is an arc-shaped tubular structure with a diameter D of 0.5 mm - 1.2 mm, and the central angle θ2 of the corresponding arc of the retractor head (300) is 190° - 210°.
6. The trachea retractor for endoscopic thyroidectomy according to claim 1, wherein, The second ventilation hole includes a first suction hole (311) and a second suction hole (312). The distance L1 from the center of the first suction hole (311) to the end of the retractor head (300) far from the retractor rod (100) is 0.3 cm - 0.7 cm; the distance L2 from the center of the second suction hole (312) to the end of the retractor head (300) far from the retractor rod (100) is 0.8 cm - 1.2 cm.
7. A tracheal retractor for endoscopic thyroidectomy according to claim 1, characterized in that, An anti-slip part (121) is formed on the outer side of the suction connection port (120), and the anti-slip part (121) is used to increase the friction between the suction connection port (120) and the suction device to prevent the suction device from separating from the suction connection port (120).
8. The trachea retractor for endoscopic thyroidectomy according to claim 7, wherein The anti-slip part (121) includes a plurality of annular anti-slip protrusions (1211), and each annular anti-slip protrusion (1211) is formed on the outer side of the suction connection port (120) and is arranged at uniform intervals.
9. A tracheal retractor for endoscopic thyroidectomy according to claim 1, characterized in that, A round blunt head (320) is formed at the end of the retractor head (300) far from the retractor rod (100) to prevent scratching human tissues.
10. A tracheal retractor for endoscopic thyroid cancer surgery according to claim 1, characterized in that, The materials of the retractor rod (100), the handle (200) and the retractor head (300) are stainless steel or ceramic, and they are integrally formed.